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Water system · PWSID AZ0402041

LA COSTA WATER USERS ASSOC

DOUGLAS, AZ · ~30 people served

Check your exact address → DOUGLAS overview
100
Excellent
PurityRadar safety score

PWSID

AZ0402041

State

Arizona

City

DOUGLAS

Population served

30

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 100

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

72

Violations on record

3

Unaddressed

2

Health-based

66

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Nov 2025. Official EPA record →

Other · EPA contaminant 7000 began Oct 2025 Unaddressed
Other · EPA contaminant 7000 began Jul 2025 Unaddressed
Monitoring & reporting · EPA contaminant 3014 began Oct 2022 Unaddressed
Other · EPA contaminant 7000 began Oct 2024 Resolved
Treatment technique · EPA contaminant 0700 health-based began Oct 2023 Resolved
Other · EPA contaminant 7000 began Jul 2023 Resolved
Treatment technique · Lead & Copper Rule health-based began Nov 2022 Resolved
Other · EPA contaminant 7000 began Oct 2022 Resolved
Other · EPA contaminant 7000 began Jul 2022 Resolved
Monitoring & reporting · EPA contaminant 3014 began Jun 2021 Resolved
Other · EPA contaminant 7500 began Feb 2021 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2021 Resolved

Recent enforcement actions

  • State action · SIA Nov 2025
  • State action · SIA Nov 2025
  • State action · SIF Jan 2025
  • State action · SIA Dec 2024
  • State action · SIE Dec 2024
  • State action · SOX Oct 2024
  • State action · SIA Oct 2024
  • State action · SOX Jan 2024

This profile is built from EPA public records for system AZ0402041 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.